What are the focal length and the power of the lens

Reference no: EM13551682

A contact lens is made of plastic with an index of refraction of 1.50. The lens has an outer radius of curvature of +2.0cm and an inner radius of curvature of +2.5cm. What are the focal length and the power of the lens?

Reference no: EM13551682

Questions Cloud

Diameter telescope were constructed on dark side of moon : Suppose a 5.0 meter diameter telescope were constructed on the dark side of the moon. The viewing there (except for brief periods of sunlight) would be excellent. As an example, what would be the separation between two objects that could just be r..

Determine the spring constant of the spring : A gas fills the right portion of a horizontal cylinder whose radius is 5.57 cm. The initial pressure of the gas is 2.91 x 105 Pa. A frictionless movable piston separates the gas from the left portion of the cylinder that is evacuated and contains ..

Carbon tetrachloride is diffusing through benzene : Carbon tetrachloride (CCl4) is diffusing through benzene (C6H6), as the drawing illustrates. The concentration of CCl4 at the left end of the tube is maintained at 1.09 x 10-2 kg/m3, and the diffusion constant is 16.7 x 10-10 m2/s.

Find the oxygen concentration at the interior end of tube : Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, through which oxygen diffuses into their bodies. The tracheae begin at the surface of the insect's body and p..

What are the focal length and the power of the lens : A contact lens is made of plastic with an index of refraction of 1.50. The lens has an outer radius of curvature of +2.0cm and an inner radius of curvature of +2.5cm. What are the focal length and the power of the lens?

Calculate the magnitude of the angular momentum of the mars : Calculate the magnitude of the angular momentum of the Mars in a circular orbit around the sun. The Mars has mass 6.42×10^23 kg , radius 3.40×10^6 m , and orbit radius 2.28×10^11 m. The planet completes one rotation on its axis in 24.5 hours and one ..

The clarinet is well modeled as a cylindrical pipe : The clarinet is well modeled as a cylindrical pipe that is open at one end and closed at the other. Find the wavelength and frequency of the third normal mode of vibration of a clarinet\'s air column with effective length of 39.7 cm.

The gravitational acceleration at the surface of a planet : The gravitational acceleration at the surface of a planet is 18.5 m/s2. Find the acceleration at a height above the surface equal to half the radius of the planet.

A block is pushed up an incline : A block is pushed up an incline. The incline creates an angle of 22.0° with the horizontal. When the block is released, it has an initial velocity of 2.75 m/s. The coefficient of kinetic friction between the block and the inclined plane is 0.450. How..

User Account

All Pages